private void PageGo(object sender, EventArgs e)
{
int inputPageNo = 0;
if (!int.TryParse(tbPage.Text, out inputPageNo))
{
tbPage.Clear();
return;
}
if (inputPageNo < 1 || inputPageNo > pageCount)
{
tbPage.Clear();
return;
}
if (inputPageNo == pageNo)
{
return;
}
pageNo = inputPageNo;
if (PageChanged != null)
{
PageChanged(sender, e);
return;
}
IPageSplit iPage = GetIPageSplitObj();
if (iPage != null)
{
iPage.PageGo(inputPageNo);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="PageSelector<EntityType>"/> class.
/// </summary>
/// <param name="gateway">The gateway.</param>
/// <param name="ps">The ps.</param>
public PageSelector(Gateway gateway, IPageSplit ps)
{
Check.Require(gateway != null, "gateway could not be null.");
Check.Require(ps != null, "ps could not be null.");
this.gateway = gateway;
this.ps = ps;
}
private void DbHelperReadSecondPage(object val)
{
IPageSplit ps = gateway.DbHelper.SelectPageSplit("Orders", new string[] { "*" }, "OrderID > @OrderID", "OrderID desc", "OrderID", new object[] { 10 });
ps.PageSize = 100;
DataSet ds = ps.GetPage(2);
ds = null;
ps = null;
}
private object DbHelperReadFirstPage()
{
IPageSplit ps = gateway.DbHelper.SelectPageSplit("Orders", new string[] { "*" }, "OrderID > @OrderID", "OrderID desc", "OrderID", new object[] { 10 });
ps.PageSize = 100;
DataSet ds = ps.GetPage(1);
ds = null;
ps = null;
return(null);
}
private void btfirst_Click(object sender, EventArgs e)
{
pageNo = 1;
if (PageChanged != null)
{
PageChanged(sender, e);
DataBind();
return;
}
IPageSplit iPage = GetIPageSplitObj();
if (iPage != null)
{
iPage.MoveFirst();
}
}
public static DataSet FindList(string fields, string tablename, string keyId, string order, string expression, int PageSize, int PageIndex, out int RowCount)
{
string SelectSql = string.Format("SELECT {0} from {1}", fields, tablename);
if (expression != null && expression != string.Empty)
{
SelectSql = SelectSql + " WHERE " + expression;
}
SelectSql += order;
Gateway gateway = Gateway.Default;
IPageSplit PageSplit = gateway.Db.GetPageSplit(SelectSql, keyId, null);
PageSplit.PageSize = PageSize;
RowCount = PageSplit.GetRowCount();
DataSet ds = PageSplit.GetPage(PageIndex);
return(ds);
}
/// <summary>
/// <para>Creates an <see cref="IPageSplit"/> for a SQL page splitable select query.</para>
/// </summary>
/// <param name="selectStatement"><para>The text of the basic select query for all rows.</para></param>
/// <param name="keyColumn"><para>The sigle main DEFAULT_KEY of the query.</para></param>
/// <param name="paramValues"><para>The param values of the query.</para></param>
/// <returns><para>The <see cref="IPageSplit"/> for the SQL query.</para></returns>
public IPageSplit GetPageSplit(string selectStatement, string keyColumn, object[] paramValues)
{
IPageSplit ps = dbProvider.CreatePageSplit(this, selectStatement, keyColumn, paramValues);
return(ps);
}
